ot to oxidant. Na+, K+, Ca2+, Ba2+, Zn2+, Cu2+and trace Fe2+ do not affect the pigment, but the shade of color becomes rose when there are much Sn2+,and becomes fading and deposition to Pb2+ and much Fe2+. The shade of color solution is red when PH is between 1~6, pale brown to yellow when PH is between 7~12. It is widely used in food, beverage, pharmaceutical, cosmetic and other industries.
4. Specifications:
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S